Whenever you are alert of irregular symptoms on your car, you are right to be concerned, because a car represents a massive annual budget and surprising breakdowns don’t lower the expenses. So what if you feel as if you have a leaking injector on your Dodge Journey? You most likely figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or unconventional black smoke. These three symptoms are the main symptoms of a leaking injector. As this problem can bring on more critical engine complications on your car, we chose to publish this content page to help you validate the failure of a leaking injector and handle it properly. To do this, we will first check out the case of gasoline injectors and then at those of diesel injectors Dodge Journey.
Leaking injector on my petrol Dodge Journey
It is vital to know that the injectors on petrol and diesel engines are different, in fact, the difference in combustion between these two sort of engines makes the injection different. The essential difference lies in the pressure experienced by the injectors, on a petrol engine it will vary between 3.5 bars for indirect injection and 120 bars for indirect injection.
Leaking injector on a petrol Dodge Journey: The different leaks
It should be said that injector leaks on a Dodge Journey equipped with a petrol engine are rather infrequent. This is resulting from the much lower pressure in the petrol intake systems. Nevertheless, there are two sort of leaks:
- Leakage from the top of the injector:
It is possible that you have a leak from the top of the injector, this is the part that is linked to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
Finally, you may encounter a leak coming from the lower portion of the injector of your car, this one will appear from the junction with the engine and not with the rail as seen before.
Leaking injector on my diesel Dodge Journey
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure generates very high pressure in the engine, as do the injectors. On these models, the pressure is more than 10 times higher than on the direct injection of car petrol engines, reaching 1800 to 2000 bars.
Leaking injector on diesel Dodge Journey: The different leaks
In the case of leaking diesel injectors on your Dodge Journey, there are three different sort of leaks:
- Leakage from the injector inlet:
In cases like this, it is an inlet pipe that will deform along with time, generally the leak will be at the clamping point. - Injector return leakage:
As its name indicates, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Dodge Journey will be caused by an O-ring or its plastic tip that leaks. - Injector base leak:
This injection leak is one of the most annoying, it is the junction between the engine and the injector nose that leaks at a copper seal, you should encounter an air noise and a compression loss. - If after examining you have oil leaking but it does not come from your injectors, we encourage you to browse this content page on the existence of oil leaking on your Dodge Journey.
Leaking injector on my Dodge Journey, how to fix the leak
And at last, we’re going to check out how to fix a leaking injector on your car. Oftentimes a leak is associated, as we have seen previously, to a worn seal as a result of the pressures suffered. But think that the pressure in the circuit is tremendous, especially on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is completed…
- Masking you to avoid the risk of fuel spillage
- NEVER work on a running diesel engine injector.
Relating to the repair part of your leak, it will regularly be restricted to changing the seals that have failed:
- Locate the source of the leak
- Dismantle the injector in question
- Change the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all cases, these interventions are not automatically complex, but if you have the tiniest uncertainty in the treatment of your injector that leaks on your Dodge Journey, we encourage you to get closer to your motor mechanic to avoid any bad handling that could significantly harm the condition of your Dodge Journey.
If you want more guides on the Dodge Journey, go to our Dodge Journey category.
